Cremona's table of elliptic curves

Curve 28400b1

28400 = 24 · 52 · 71



Data for elliptic curve 28400b1

Field Data Notes
Atkin-Lehner 2+ 5+ 71+ Signs for the Atkin-Lehner involutions
Class 28400b Isogeny class
Conductor 28400 Conductor
∏ cp 16 Product of Tamagawa factors cp
deg 30720 Modular degree for the optimal curve
Δ -710000000000 = -1 · 210 · 510 · 71 Discriminant
Eigenvalues 2+  0 5+  4  2  0 -2  0 Hecke eigenvalues for primes up to 20
Equation [0,0,0,-1075,-42750] [a1,a2,a3,a4,a6]
Generators [2610:46875:8] Generators of the group modulo torsion
j -8586756/44375 j-invariant
L 6.0529499386934 L(r)(E,1)/r!
Ω 0.37574840258759 Real period
R 4.0272625891486 Regulator
r 1 Rank of the group of rational points
S 0.99999999999999 (Analytic) order of Ш
t 2 Number of elements in the torsion subgroup
Twists 14200e1 113600bw1 5680b1 Quadratic twists by: -4 8 5


Data from Elliptic Curve Data by J. E. Cremona.
Design inspired by The Modular Forms Explorer by William Stein.

Part of Computational Number Theory
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